Refractory Strip

These Refractory Strip Heaters have a Resistor Wire which is Embedded in specially formulated, high-grade refractory material which both insulates the resistor and transfers heat rapidly to the sheath. The Refractory strip heater is then Compressed to Rock Hardness and high density under tremendous hydraulic pressure to maximize heat transfer from coil to sheath. Elements are oven cured at high temperatures to cure the refractory.

Our 375 Strip Heater’s highly compacted refractory material quickly conducts heat from the resistance wire to the sheath resulting in low internal temperatures and long heater life in the most demanding applications. Precise placement of the resistance wire provides uniform sheath temperature across the width and along the entire heated length. Terminal designs allow easy installation wiring. The 375 name comes from it’s 3/8″ thickness which creates a rigid sheath for secure clamping ability. The refractory Strip Heater is ideally suited for many industrial and commercial applications.

Termination: 10-32 threaded post terminals offset at one end (Type A), one terminal at each end (Type B), or perpendicular to length at one end (Type C) Ceramic terminal covers

Secondary Insulation Bushings are required for mounting in air heating application or when 375 Refractory Strip Heaters are wired in series on line voltages above 480. Also, specify if a 9/16″ x 11/16″ mounting slot to accommodate the Secondary Insulation Bushing.

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Custom Options

Custom doesn’t necessarily mean “long delivery”. Phoenix Thermal Supply can offer you a wide variety of Quick-Ship products, totally made-to-order, or assembled from stock component parts. Made the way you want it, when you need it. Limitations apply, so please inquire as to options. With available options you can make an educated decision based on your need for delivery, performance and/or product fit and cost.

In Stock Fast Shipment

Phoenix Thermal Supply offers an extensive array of products that can be shipped same day, or within 24 hours of order placement. Many of our Quick-Ship products are in stock, and are just waiting to be “finished” with final modifications. We’ll give you all the details you need to help you make the ordering process simple and effortless. We pride ourselves on not being “order takers." Rest assured, if you have a machine down, we will jump through hoops for you.